<em>Tetrabaena socialis</em> (IMAGE) University of the Witwatersrand Caption This is the muliticellular algae, Tetrabaena socialis. Credit Hisayoshi Nozaki and Yoko Arakaki Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.